Improvements in Mechanism for Automatically Heating, Fluxing, and Soldering Cans.

摘要

5933. Rehfuss, J. G., and Rehfuss, M. O. March 10. Soldering.-Relates to a machine for automatically heating, fluxing, and soldering the tops and bottoms of cans, comprising means whereby the body portions of cans, upon which the tops and bottoms have been placed by mechanism described in the preceding No. 5932, A.D. 1904, are carried in upright pcsitions by an endless carrier, each can being caused to rotate as it travels with the carrier, and each top and bottom automatically fluxed and soldered to the body portion while thus in motion, and during a single cycle of the endless carrier. Links C of an endless carrier run on rollers B1 mounted in a channel-iron frame A, and each link carries rigidly a yoke D having a shaft provided with a plate E', the cans being held between the plate E1 and a plate attached to a shaft F1 feathered on a collar mounted in the link C, and pressed upwards by means of a lever G2 carrying rollers I running on tracks H, the lever being pivoted in a bracket G3 attached to the link, and standing under the action of a spring G4 attached at one end to the lever G2, and at the other end to an eye carried by the link C. Racks K fixed to the frame gear with pinions mounted on the links C and in gear with a pinion J1 attached to the feathered shaft F1, thus providing means for rotating the cans. A carriage O mounted on a fixed bar 01 is caused to reciprocate by means of a lever N driven through links T3, X by a cam T. A shaft P journalled in the frame A carries a pinion S2 in gear with a wheel S driven through ratchet gearing S5, S7 and a link S" by a cam S12. A wheel P' feathered on the shaft P gears with a wheel P serving to drive a milled wheel between which, and a similar wheel, a rod of solder may be fed through an aperture R', there being two solder-feeding devices mounted on each of the top and bottom carriages 0. The cans are heated and fluxed preparatory to being soldered, the burners used shown in Figs. 6 and 7 being connected with a gaseous-mixture pipe 5 and an air pipe 51 carried by clamping-jaws 7 and mounted in standards 6, reciprocation being effected by means of a link 9 pivoted to the upper end of the lever N. Each of the three burners used consists of a chamber 17 connected through pipes 24, 11 with the gas and air pipes 5, 51 respectively, a valve-chamber 12 mounted on a union 13 and provided with a suitable valve being placed on the pipe 11. The base 15 of the chamber 17 is provided with two apertures 18, 181 in order to receive pipes 19, 20 opening into nozzles 22, 23, the nozzles being so disposed as to cause the currents from each nozzle to impinge one against the other, and adjacent to the seam of the can being soldered. A similar series of reciprocating burners is mounted at the bottom part of the frame A. A fluxing-device, shown in Fig. 9, is attached to the pipes 5, 51 by means of clamps 27, and, consists of a flux receptacle 29 carrying a shaft 32 on which are mounted a bevel-wheel 36 and pivoted arms 33. The wheel 36 gears with a bevel-wheel 35 on the shaft 34 journalled in the arms 33, the bevel-wheel 35 being in gear with a bevel-wheel 40 keyed on a shaft 38 and running on the edge of the can. The arms 32, 33 may be adjusted in position according to the location of the cans, and the three wheels of the flux-feeding mechanism may be also raised or lowered in order to keep in gear. In operation, the fluxing and heating devices travel forwards at the same speed as the cans, which, after being heated, are fluxed and then soldered, the tops and bottoms of the cans being soldered while the can is travelling at the bottom and top of the frame respectively.